Flamers fix (slightly nerf all incendiary weapons)

Reason: flamers and all incendiary weapons very effective in most cases

1) Reduced damage for inferno and plasmite flamers
2) Increased research points for first flamer
3) Increased thermal armor for bodies (10%), see another commit
4) Nerfed hover propulsion, see another commit
5) Nerfer thermite and plasmite bombs
6) Nerfed incendiry mortar (reduced damage and increased price)

 Changed item: Plasmite Flamer [PlasmiteFlamer]
	-Field Name: 'Build Power'	old value:80	new value: 100
	-Field Name: 'Build Points'	old value:400	new value: 550
	-Field Name: 'Weight'	old value:750	new value: 1250
	-Field Name: 'Firepause (10=1s)'	old value:20	new value: 24
	-Field Name: 'Incendiary Damage'	old value:63	new value: 50
	-Field Name: 'Damage'	old value:63	new value: 58

 Changed item: Inferno [Flame2]
	-Field Name: 'Build Power'	old value:80	new value: 90
	-Field Name: 'Build Points'	old value:400	new value: 500
	-Field Name: 'Weight'	old value:500	new value: 1000
	-Field Name: 'Firepause (10=1s)'	old value:20	new value: 24
	-Field Name: 'Incendiary Damage'	old value:40	new value: 34
	-Field Name: 'Damage'	old value:40	new value: 38

 Changed item: *Cybrog Thermite Weapon* [Cyb-Wpn-Thermite]
	-Field Name: 'Firepause (10=1s)'	old value:18	new value: 22
	-Field Name: 'Incendiary Damage'	old value:38	new value: 32

 Changed item: VTOL Plasmite Bomb Bay [Bomb5-VTOL-Plasmite]
	-Field Name: 'Incendiary Damage'	old value:200	new value: 125
	-Field Name: 'Build Power'	old value:225	new value: 200

 Changed item: VTOL Thermite Bomb Bay [Bomb4-VTOL-HvyINC]
	-Field Name: 'Incendiary Damage'	old value:200	new value: 125
	-Field Name: 'Build Power'	old value:225	new value: 200

 Changed item: VTOL Phosphor Bomb Bay [Bomb3-VTOL-LtINC]
	-Field Name: 'Build Power'	old value:175	new value: 150
	-Field Name: 'Build Points'	old value:700	new value: 600
	-Field Name: 'Damage'	old value:100	new value: 120
	-Field Name: 'Splash damage'	old value:0	new value: 60
	-Field Name: 'Splash radius'	old value:0	new value: 160
	-Field Name: 'Splash chance'	old value:0	new value: 100

 Changed item: Incendiary Mortar [Mortar-Incenediary]
	-Field Name: 'Splash damage'	old value:70	new value: 60
	-Field Name: 'Incendiary Damage'	old value:30	new value: 24
	-Field Name: 'Incendiary Radius'	old value:192	new value: 160

 Changed item: Incendiary Howitzer [Howitzer-Incenediary]
	-Field Name: 'Incendiary Damage'	old value:60	new value: 48

 *** structures.txt ***
 Changed item: Incendiary Howitzer Emplacement [Emplacement-Howitzer-Incenediary]
	-Field Name: 'Build points'	old value:550	new value: 700
 Changed item: Incendiary Mortar Pit [Emplacement-MortarPit-Incenediary]
	-Field Name: 'Build points'	old value:425	new value: 550
	-Field Name: 'Build Power'	old value:135	new value: 160

 *** research.txt ***
 Changed item: Flamer [R-Wpn-Flamer01Mk1]
	-Field Name: 'Research points'	old value:600	new value: 1200
Changed item: High Temperature Flamer Gel [R-Wpn-Flamer-Damage01]
	-Field Name: 'Research points'	old value:600	new value: 1200
 Changed item: High Temperature Flamer Gel Mk2 [R-Wpn-Flamer-Damage02]
	-Field Name: 'Research points'	old value:1200	new value: 1800
 Changed item: Flamer Autoloader [R-Wpn-Flamer-ROF01]
	-Field Name: 'Research points'	old value:900	new value: 1800